Thousands of Italian localities, though not being a comune, have their own Zip or postal code ("CAP" in Italian); the alphabetical list here provided gives the three basic details necessary to write a correct mailing address:
CAP locality province abbreviation
in the format as they must appear on normalized addresses.
That is, the last address line must show: the C.A.P (five digits), the locality in Italy, the two letters of the Italian province (that must NOT be included in brackets). There must not be any hyphens, underlinings, commas or other unnecessary punctuation.
A second row (that MUST NOT be included in the mailing address) gives the Italian comune (in case the locality is not a commune itself) and the Italian province with a link to the province page.